Removal of 3-chlorophenol from water using rice-straw-based carbon

Wang, Shan‐Li; Tzou, Yu-Min; Lu, Yi-Hsien; Sheng, Guangyao

doi:10.1016/j.jhazmat.2007.01.031

Cited by 98 publications

(48 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A wide absorption band at 3200-3600 cm −1 with a maximum at about 3411 cm -1 is assigned to O-H stretching vibrations of hydrogen bonded hydroxyl groups (Wang et al, 2007). Aliphatic C-H stretching vibration is found as a very weak peak at 2884 cm −1 while asymmetric vibration of CH 2 group appears at 2915 cm −1 .…”

Section: Function Groups Of Lwacmentioning

confidence: 93%

Henna wood as an adsorptive material for bentazon

Mounaouer¹,

Wali²,

Fourti³

et al. 2014

Afr. J. Biotechnol.

View full text Add to dashboard Cite

In this study, the efficiency of activated carbon produced from Henna wood was studied to remove herbicide from aqueous solutions by adsorption. The parameters that affect the adsorption such as contact time, activated carbon dosage, initial concentration of adsorbate, stirring rate, temperature, and pH on bentazon adsorption were studied. The use of Henna wood as a raw material to produce activated carbon by physical activation was investigated. The activated carbons produced were characterized by nitrogen adsorption isotherms and point of zero charge properties. Brunauer, Emmett and Teller (BET) surface area of the activated carbon was determined. The removal of herbicide from aqueous solutions by adsorption on activated carbon produced was studied. The results of the present investigation showed that activated carbons prepared from Henna wood have good adsorption capacity for the removal of bentazon from aqueous solution. The Langmuir model provides the best correlation of the experimental equilibrium data. Adsorption isotherm according to BET classification was of Type I. The adsorption isotherms of bentazon revealed that adsorption increased as the concentration increases up to a saturation point. Enthalpy, entropy and free enthalpy adsorption have a negative value indicating that the adsorption of bentazon on the Henna wood activated was feasible, spontaneous and exothermic at 20 to 40°C.

show abstract

Section: Function Groups Of Lwacmentioning

confidence: 93%

Henna wood as an adsorptive material for bentazon

Mounaouer¹,

Wali²,

Fourti³

et al. 2014

Afr. J. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…According to the dissociation constant of ibuprofen (pK a = 4.91), more than 50% of the ibuprofen is expected to be deprotonated at pH [ pK a . Generally, an increase in the solution pH results in partially or fully deprotonated surface functional groups and thus a loss of positive charge and/or build up of negative charge (Wang et al 2007). When sorption occurs above pH 9 (pH [ pK a ), the anionic form of ibuprofen is dominant in solution and additionally overall surface charge on the activated carbon is negative when the solution pH is greater than pH pzc (6.88).…”

Section: Effect Of Ph On Ibuprofen Sorptionmentioning

confidence: 99%

Sorptive removal of ibuprofen from water using selected soil minerals and activated carbon

Behera

Park

2011

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Pharmaceuticals have gained significant attention in recent years due to the environmental risks posed by their versatile application and occurrence in the natural aquatic environment. The transportation and distribution of pharmaceuticals in the environmental media mainly depends on their sorption behavior in soils, sediment-water systems and waste water treatment plants, which varies widely across pharmaceuticals. Sorption of ibuprofen, a non-steroidal anti-inflammatory drug, onto various soil minerals, viz., kaolinite, montmorillonite, goethite, and activated carbon, as a function of pH (3-11), ionic strength (NaCl concentration: 0.001-0.5 M), and the humic acid concentration (0-1,000 mg/L) was investigated through batch experiments. Experimental results showed that the sorption of ibuprofen onto all sorbents was highest at pH 3, with highest sorption capacity for activated carbon (28.5 mg/g). Among the minerals, montmorillonite sorbed more ibuprofen than kaolinite and goethite, with sorption capacity increasing in the order goethite (2.2 mg/g) \ kaolinite (3

show abstract

“…It was established that the pseudo -second -order model, used to describe chemisorptions, fitted the experimental data better which was obvious from the higher correlation coefficient values (R 2 ). So, it was noticed that the mostly PCP adsorption experiments was governed by a chemical reaction [28].…”

Section: Adsorption Dynamicsmentioning

confidence: 99%

Insights onto the Adsorption of MFe2O4 Nanoparticles Loaded onto Activated Carbon

Attia¹,

Shouman

El-Khouly

2017

Egypt. J. Chem.

View full text Add to dashboard Cite

I N THIS WORK, magnetic nanoparticles of MFe 2 O 4 (M: Fe, Mn, Cu and Co) were prepared on the surface of granular activated carbon throughout the impregnation process, employing HNO 3 acid as the carbon modifying agent. These adsorbents were employed to assess the adsorption capability of p-chlorophenol from aqueous solution. The adsorbents were characterized by XRD, SEM, EDX and nitrogen adsorption isotherms. Additionally, the impact of various parameters such as pH, contact time was investigated. The results demonstrate that the current phase is mainly γ-Fe 2 O 3 (maghemite), spinel manganese, copper and cobalt ferrite, respectively. The equilibrium details were best ascribed by the Langmuir model accompanied by high adsorption capacity of 110mg/g for γ-Fe 2 O 3 / activated carbon. The kinetic experimental analysis of the adsorption model perfectly was correlated to the pseudo -second order kinetics. With the advantages inexpensive and fast processing, these adsorbents could attain promoting application in wastewater treating.

show abstract

Removal of 3-chlorophenol from water using rice-straw-based carbon

Cited by 98 publications

References 37 publications

Henna wood as an adsorptive material for bentazon

Henna wood as an adsorptive material for bentazon

Sorptive removal of ibuprofen from water using selected soil minerals and activated carbon

Insights onto the Adsorption of MFe2O4 Nanoparticles Loaded onto Activated Carbon

Contact Info

Product

Resources

About